9 Questions 1 Answers 0 Followers
Questions related from Jw Heo
I want to make the chemical reaction for the textile type of carbon fiber. (For example, the reaction of carbon fiber (10cm x 10cm x 0.3mm) at elevated temperature under nitrogen atmosphere) I...
02 March 2020 7,726 1 View
I did an experiment of making functionalized graphene oxide and dried it in a vacuum oven after centrifugation, and ground f-GO using mortar and pestle. But, after grinding, it still didn't...
29 November 2019 7,655 3 View
I synthesized a silica-functionalized graphene through esterification. I found an ester peak(~1735 cm-1) in the functionalized GO, however, I also found the same peak in the original GO. Then,...
09 September 2019 5,042 3 View
I want to functionalize graphene oxide using esterification. When I searched the papers about this kind of reaction, I found that many authors synthesized ~100 mg of graphene oxide. However, I...
16 August 2019 7,704 3 View
I have used DCC/DMAP catalyst for esterification of graphene oxide. (COOH group of graphene oxide + OH group of silica) However, I had a problem of removing DCU product from DCC. And, I saw the...
16 August 2019 9,974 0 View
I took Graphene Oxide in DI water for 3 days for neutralization.. I used the method of vacuum filtration, and, beyond my expectation, it took a long time for making PH of GO as 7 or 8. Is it okay...
22 June 2019 396 4 View
I found a paper about grafting silica nanomaterial to carbon fiber. Shortly, 1) CF-COOH is made. 2) With a reflux reaction (at 50C, 4h), CF-COOH reacts with solvent including silica nanomaterial....
18 June 2019 2,121 3 View
I want to make a masterbatch for extrusion (I will use a twin-screw extruder) I searched the method to make masterbatch, and one example is mixing powder and cnt (melt-blending, or centrifugal...
21 April 2019 3,584 3 View
I want to synthesize the compatibilizer of PPS for extrusion, especially PPS-COOH or other PPS derivatives . I found a research paper where PPS-COOH is made by using 'high pressure reactor' Is...
21 February 2019 3,865 2 View